Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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VTD Fuel Disable

Scan Tool Displays ACTIVE or INACTIVE. The PCM enables the fuel injectors if the proper Theft Deterrent Fuel Enable signal from the Vehicle Theft Deterrent (VTD) Control Module is received. The scan tool normally displays INACTIVE. If the VTD Control Module does not send the correct Theft Deterrent Fuel Enable Signal to the PCM, the display will switch to ACTIVE and the fuel system may be disabled. Refer to DTCs P1626, P1629, or the Vehicle Theft Deterrent System for further diagnosis.